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Short in the btn circuit all lights work . on turning signals, newer alternator tested good,used light switch put on dont know wht "btn" stands for?

Problem started when i went over a rough road with a load in the car the strut tower top seperated on drivers side. tower..Engine was cutting out,battery was going dead when i got home,checked the wires and found no visible damage. I rebuilt the strut towers. I pull the fuses and the one that stopes the draw is the BTN fuse . Dont know what BTN stands for! replased the emergency flasher relay and every thing worked ! then i ran the rougth road . Checked every ground wire too the body and fram i can find.

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  • Expert
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K is it a boat truck van car tractor trailer lawnmower ?great describtion of the issue but ??

Posted on Dec 30, 2012

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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SOURCE: wiring problem

Check the fusible links at the starter. One of them may be burned. You mentioned that it shuts down when you turn a corner. Check the wiring going to the ignition switch under the steering column, you may have a loose wire there as well.

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tbirdfan1
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SOURCE: 1196 chey blazer

overheating could be caused by a stuck thermostat or a clogged radiator not firing on #1 plug could be a fouled plug or bad wire or it may be grounding on the block and your coiil may not have been put in at the right mark

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moparownr
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SOURCE: Taillights are not working

check for voltage in the socket. positive is the center connection. if you have no voltage there, then you may be right. Make sure that you check the wires.

Posted on Mar 23, 2009

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SOURCE: Instrument panel went dead

Checked Every fuse in the fuse box (no small task).This includes #4 - Power point Instrument Panel, #14 - Day time running lamps (auto lamps doesn't work nor does auto lock), #27 - ignition switch run feed, #35 - Instrument Cluster, #41 - Instrument Cluster, #42 - Delayed Accessory, #45 - Ignition switch run/start feed, #102 - Door locks body security module, #103 - Ignition switch, #110 - Ignition switch, & #116 - Ignition switch. But I also check all other ones as well, they all register OK. AC panel & radio work. Turn signals work. Mileage does not work, trip computer does. So, basically, everything works except auto head-lights, auto locks, and the dash cluster (no MPH, RPM, mileage display, Fuel, Temp, Tran Temp, and Oil Pressure).

Posted on Sep 30, 2009

  • 3600 Answers

SOURCE: i have a F 350 that the turn signal and emerg

check the flasher module on the passenger side kick pannel if you need to know how to get to it let me know and I can give you instructions.

Posted on Jan 26, 2010

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1 Answer

Auto lights won't turn off on a 2011 Chevy Traverse even after 10 minutes


Well Jeni there are a few thing's that could be wrong , the headlamp switch , the BCM -body control module -a electronic control module . There are relays involved also ,but don't think there at fault . To be sure you need to do some electrical test to know for sure ! I suggest you take it to a ASE certified repair shop that has the knowledge , tools an service info - wiring diagrams etc.. ! Oh and a scan tool that can extract DTC'S from the BCM there could be a diagnostic trouble code pointing to the problem !
DTC B257A 00: Headlamp Switch Input Signal Mismatch
Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance
Headlamp Switch Off Signal
B257A 00
3
--
--
Park Lamp Switch On Signal
5
4
--
--
Headlamp Switch On Signal
B257A 00
2
--
--
Headlamp Ground
--
2, 3, 4
2
--

1. Headlamps Always On

2. Headlamps Inoperative From Switch

3. Unable To Turn OFF Automatic Headlamps

4. Park Lamps Inoperative From Switch

5. Park Lamps Always On
When the headlamp switch is in the OFF position, the body control module (BCM) receives a ground signal through the headlamp switch OFF circuit and an open signal on the park lamp ON circuit and headlamps ON circuit. When the headlamp switch is in the PARK or HEAD position, the BCM receives an open signal through the headlamp switch OFF circuit and a ground signal through the park lamp ON circuit or headlamp ON circuit.
Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Verify that a test lamp illuminates between the ground circuit terminal 8 and B+.
  3. ?‡'
    If the test lamp does not illuminate, test the ground circuit for an open/high resistance.

  4. Ignition ON, verify the scan tool Auto Hdlp. Disable Sw. parameter is Inactive.
  5. ?‡'
    If not the specified value, test the signal circuit terminal 3 for a short to ground. If the circuit tests normal, replace the BCM.

  6. Verify the scan tool Headlamp Switch parameter is Inactive.
  7. ?‡'
    If not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the BCM.

  8. Verify the scan tool Parklamp Switch parameter is Inactive.
  9. ?‡'
    If not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the BCM.

  10. If all circuits test normal, test or replace the headlamp switch.
If the BCM needs to be replaced , it has to be programmed . The dealer is pretty much the only place to have that done at ! There are other places ,you have to look in the phone book or inquire at local repair shops . Some towns ,city's have mobile repair guy's that do flash programming of modules etc... Good luck hope I gave you some insight on the problem ! I tell people these thing's an it's like they don't believe me , I see they repost the same question . I started working as a Technician in 1984 at a Chevy dealer ship an have worked at Cadillac , Pontiac , GMC dealer ships ! I see all to often people trying to fix these type of problems by just replacing parts not knowing what they are doing an wasting there money an later bring it to the shop anyway ! So I hope you make a good decision an take to a qualified repair person or shop !

Jul 05, 2015 | 2011 Chevrolet Traverse

3 Answers

Turn signals stay flashing rely fast and the front ones dont turn on


When this happened to me, it ment the bulb was burned out,

Apr 09, 2014 | 2000 Mazda Protege

1 Answer

Battery won't stay charged, it is brand new battery, alternator has been checked and it is good, blown BTN 60 watt fuse, on 1994 Mazda Protege.


The 60amp fuse probably is in the circuit between the alternator and the battery. Which would be why the battery is not getting charged.
Someone would need to check for a short in the wiring between the alternator and the battery.

Oct 15, 2012 | 1994 Mazda Protege

2 Answers

93 miata, only the headlights work. it keeps blowing the btn fuse as soon as i put it in. are the diodes bad on the alternator?


Hi Lee and Chuck, Seems you have a serious short circuit in your vehicle. The fact that when the vehicle stands it will need to be jump started would seem to confirm the same. The power seems to be draining somewhere! The fuses which blow will give an indication of which circuit is shorting. If your brother wired in a music system or radio, disconnect it and then see if the fuses still blow? If they stay fine you know where to start. The music system is connected to the lights for night illumination of the controls. It may be that the earth connection has been mixed up with a power cable? If the vehicle runs fine during the day and does not give problems when restarting, it would be doubtful that there is damage to the alternator. You can check it fairly easily by connecting a test meter to each of the terminals. Start the vehicle and if while cranking the voltage drops below 8 volts, get the battery replaced. If it remains at about ten during starting that's fine. Measure the battery voltage before starting and confirm 12 volts. Once started the voltage should be at about 13 volts if the alternator is charging and when the horn is pressed and the wipers turned on together with the heated window, the voltage should climb to about 13 and a half volts. If the voltage remains unchanged or drops the alternator is damaged. Usually the head lights would be turned on to carry out this simple test but as the fuses blow you can do that when you've found the short circuit. Good luck and best regards John

Aug 11, 2012 | 1993 Mazda MX-3

1 Answer

I have a 2000 pontiac grand prix gtp that i just had a new altenator put on because i was told there was a short that was causing my lights interior and exterior to flicker now that the new one is in when...


This means you have an electrical problem ! An without doing some testing with a volt meter an looking at a wiring diagram to isolate the circuits from the ones with the problem i would be guessing , just like anyone else on here would be doing . Do you know how to do automotive electrical testing ? How to read an use a wiring diagram .It is true a bad diode inside the alternator can cause excess AC voltage ripple , causing lights to flicker ! If i were to guess i'd say there is a ground issue and voltage is back feeding through one of the lamp circuits . But also looking at a wiring diagram i see the brake light switch feeds B+ voltage to the center high mount stop lamps and to and through the turn signal switch .to the right and left lower stop lamps . Pontiac grand Am's had multifuction switch problems that caused similiar problems . Check the grounds first , do you know what a body ground is .
Watch this training video .
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
Electric Testing Techniques You Need to Know
You can find free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size > Under system click on lighting ,then under subsystem click on exterior lighting , click the search button then the blue links .

May 25, 2017 | 2002 Pontiac Grand Prix

1 Answer

My 1984 Buick regal back lights stop working, any suggestions on wht to and where to check?


Hello ojuice44,

If the bulb are good the next place to look is to check the fuses, if your turn signals work the fuse will be good. The fuse for the back-up lights is the same one for the turn signal..

After that there are two areas to check.

First, check for power and ground at the bulb sockets if ground is good and no power go to next step. If no ground repair the ground circuit ( See diagram below).

Second,check for power to the gear selector switch. Check for power with the key on and engine off going into the switch on the dark blue wire (See diagram below) if no power repair that circuit. If there is power there, then with the key on and engine off put the gear selector in reverse and check for power at the light green wire if there is power there the switch is good if no power replace the switch. If you do have power at the light green wire coming out of the switch repair the light green circuit from there to the taillights.

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I hope this helps.

Regards,

netvan

Aug 20, 2011 | 1984 Buick Regal

2 Answers

Why does my battery keep going dead I have relaced it 3 times a new alternator if the car sits for 2 days or more and is not started and ran the battery is completely dead


BATTERY DRAINS ARE TRICKY. TURN OFF ALL SWITCHES, CLOSE GLOVE BOX. MAKE SURE GLOVE BOX LIGHT IS OUT. OPEN THE HOOD. DISABLE THE UNDER HOOD LIGHT. CLOSE ALL THE DOORS. MAKE SURE ALL COURTESY LIGHTS ARE OUT. DISCONNECT NEG. BATTERY CABLE. USE 12 VOLT TEST LIGHT, CONNECT ONE END TO A METAL PIECE ON THE MOTOR FOR GROUND. FASTEN THE OTHER END TO THE NEGATIVE BATTERY POST. IF THE LIGHT IS ON, THAT MEANS THERE IS A BATTERY DRAIN. LIGHT NOT ON, NO DRAIN. IF THE LIGHT IS ON, FIND THE POWER BOX NEAR THE BATTERY. PULL OUT ONE FUSE, IF THE LIGHT STAYS ON PUT HE FUSE BACK, PULL OUT THE NEXT FUSE. IF THE LIGHT STAYS ON PUT THE FUSE BACK . REPEAT THIS UNTIL THE LIGHT GOES OUT, OR GETS VERY DIM. OUT IS BETTER. WHEN THE LIGHT GOES OUT, THAT IS THE CIRCUIT THAT IS DRAINING THE BATTERY. REFER TO OWNERS MANUAL TO IDENTIFY THE CIRCUIT. IF THE LIGHT NEVER GOES OUT, REMOVE THE WIRES FROM THE ALTERNATOR. IF THE LIGHT GOES OUT, ALTERNATOR NEEDS REPLACING.

Jan 15, 2011 | 2003 Ford Mustang

1 Answer

Have a 1999 Chev. Suburban. Problem is with brake lights. Top panel (on roof) works but neither side panel works. Replaced circut boards in tail lights, new bulbs, and all fuses are good. What next?


WITH A GOOD FUSE TESTER, TEST ALL THE FUSES FUSEBOX UNDER THE HOOD & INSIDE THE VEHICLE. IF THE FUSES ARE ALL GOOD WITH THE TESTER YOU MUST HAVE A BAD BRAKE LIGHT SWITCH OR A BAD TURN SIGNAL SWITCH. THE BRAKE LIGHT CIRCUIT GOES UP THROUGH THE TURN SIGNAL SWITCH & THEN TO THE BRAKE LIGHTS. FIRST OF ALL IS THE BRAKE LIGHT SWITCH GOOD ? THE ORANGE WIRE FEEDS THE BRAKE LIGHT SWITCH, THE WHITE WIRE PUTS POWER TO THE TURN SIGNAL SWITCH, SO THE LIGHTS CAN BE USED AS TURN LIGHTS OR BRAKE LIGHTS. , PUT A TESTER IN THE WHITE WIRE & PRESS ON THE BRAKE PEDAL. IF THE TEST LIGHT LIGHTS UP, BRAKE LIGHT SWITCH IS GOOD, BY THE WAY THE BRAKE LIGHT FUSE MAY BE LABELED" STOP", THE FUSE LABELED" BRAKE" IS FOR THE ABS SYSTEM. TO CHECK THE TURN SIGNAL SWITCH FOR BRAKE LIGHTS, REMOVE THE PLASTIC COVER FROM UNDER THE STEERING WHEEL, PRESS ON THE BRAKE PEDAL, PUT THE TESTER IN THE SMALL YELLOW WIRE, THEN THE SMALL GREEN WIRE. IF THERE IS NO POWER IN EITHER WIRE, THE TURN SIGNAL SWITCH IS BAD.

Jan 11, 2011 | 1999 Chevrolet Suburban

1 Answer

1996 honda accord, 6 cyl, EX Both low beam headlights went out last night. As far as I know, they were working. Went to Walmart and bought a 2 pack headlisghts and put only 1 in and the low beam (new bulb)...


Check the wire circuit for voltage and ground. The top wire is voltage, you can see the wire color, use a test lite, with lights on. The bottom black wire is ground for low beams, chassis ground. You can use test light to check ground, With test light touching voltage, touch ground wire terminal, if the light comes on, at least, the ground is good enough to lite the test light.
headlamps-q31w4wolaoqrlfayhzuvwer5-2-0.jpg

Apr 26, 2017 | 1996 Honda Accord

1 Answer

Error code p1647


This code can be set for either a short to ground, short to power, high resistance or open circuit on Oxygen Sensor for bank 2, (HO2S21). Bank 2 is on your right when standing at the front of the engine facing the crank, and this sensor is the first in line; before the converters. Check out our circuit testing article at www.engine-light-help.com/check-engine-light-circuit-testing.html for help with testing. From what I can tell the wires from that sensor are RED/WHT, WHT/RED, GRN, BRN. I would recommend checking related wiring for opens, shorts or chaffing before condemning the sensor. Just for info you may want to check out our article on Oxygen Sensors at http://www.engine-light-help.com/oxygen-sensor-codes.html Hope this helps.

Sep 11, 2009 | 2002 Jaguar X-Type

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